------------[ cut here ]------------
WARNING: CPU: 0 PID: 4581 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 4581 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 4581 Comm: syz.4.46 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Code: 2a f8 0f 0b 4f 89 64 2f 04 4f 89 64 2f 0c 43 c6 44 2f 14 f8 e9 19 fe ff ff e8 0d c0 2a f8 0f 0b e9 03 ef ff ff e8 01 c0 2a f8 <0f> 0b e9 76 f2 ff ff e8 15 89 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900000078e0 EFLAGS: 00010246
RAX: ffffffff894e5f9f RBX: ffff88805e862298 RCX: ffff88807a555940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007b08 R08: ffff88807a555940 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888078c21e00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f2c
FS: 00007f95d508d6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3261eff8 CR3: 000000005f9a7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202
ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4eb/0xb70 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
handle_softirqs+0x339/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:58 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:347 [inline]
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:357 [inline]
RIP: 0010:unwind_next_frame+0x961/0x1d90 arch/x86/kernel/unwind_orc.c:539
Code: 10 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 48 0f b6 04 01 84 c0 0f 85 b7 0f 00 00 83 3b 00 0f 95 c0 4d 39 fe 0f 96 c1 20 c1 <4d> 39 fd 0f 97 c0 20 c8 3c 01 75 14 49 8d 47 08 4c 39 f0 0f 97 c1
RSP: 0018:ffffc9000377f608 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc9000377f6c8 RCX: 1ffff920006efe01
RDX: 1ffffffff1cf098c RSI: ffffffff8e784c5c RDI: ffffc9000377f6d8
RBP: ffffc9000377f710 R08: 0000000000000001 R09: 0000000000000006
R10: dffffc0000000000 R11: fffff520006efee5 R12: 1ffffffff1cf098c
R13: ffffc90003780000 R14: ffffc90003778000 R15: ffffc9000377fc10
arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:38 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:46
kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
____kasan_slab_free+0xd5/0x110 mm/kasan/common.c:366
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1710 [inline]
slab_free_freelist_hook+0xea/0x170 mm/slub.c:1736
slab_free mm/slub.c:3504 [inline]
kfree+0xef/0x2a0 mm/slub.c:4564
skb_free_head net/core/skbuff.c:655 [inline]
skb_release_data+0x6b8/0x800 net/core/skbuff.c:677
skb_release_all net/core/skbuff.c:742 [inline]
__kfree_skb net/core/skbuff.c:756 [inline]
kfree_skb_reason net/core/skbuff.c:776 [inline]
kfree_skb include/linux/skbuff.h:1118 [inline]
skb_queue_purge+0x1bd/0x290 net/core/skbuff.c:3324
vhci_flush+0x3b/0x40 drivers/bluetooth/hci_vhci.c:60
hci_dev_do_close+0x9f1/0x1030 net/bluetooth/hci_core.c:1806
hci_dev_close+0xd7/0x180 net/bluetooth/hci_core.c:1877
sock_do_ioctl+0xfb/0x320 net/socket.c:1147
sock_ioctl+0x4d2/0x710 net/socket.c:1266
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f95d6e73eb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f95d508d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f95d70ef180 RCX: 00007f95d6e73eb9
RDX: 0000000000000000 RSI: 00000000400448ca RDI: 000000000000000a
RBP: 00007f95d6ee1c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f95d70ef218 R14: 00007f95d70ef180 R15: 00007ffc8b6dd088
----------------
Code disassembly (best guess):
0: 10 48 b8 adc %cl,-0x48(%rax)
3: 00 00 add %al,(%rax)
5: 00 00 add %al,(%rax)
7: 00 fc add %bh,%ah
9: ff lcall (bad)
a: df 48 8b fisttps -0x75(%rax)
d: 4c 24 48 rex.WR and $0x48,%al
10: 0f b6 04 01 movzbl (%rcx,%rax,1),%eax
14: 84 c0 test %al,%al
16: 0f 85 b7 0f 00 00 jne 0xfd3
1c: 83 3b 00 cmpl $0x0,(%rbx)
1f: 0f 95 c0 setne %al
22: 4d 39 fe cmp %r15,%r14
25: 0f 96 c1 setbe %cl
28: 20 c1 and %al,%cl
* 2a: 4d 39 fd cmp %r15,%r13 <-- trapping instruction
2d: 0f 97 c0 seta %al
30: 20 c8 and %cl,%al
32: 3c 01 cmp $0x1,%al
34: 75 14 jne 0x4a
36: 49 8d 47 08 lea 0x8(%r15),%rax
3a: 4c 39 f0 cmp %r14,%rax
3d: 0f 97 c1 seta %cl